Machine for cleaning muffles or zinc-furnaces.



y o. SABGBR. MACHINE POR CLEANING MUEPLES 0R ZINC FURNAGBS.

. Y l APPLICATION FILED sEPTJz, 1911.'.- 1,014,333.

Patented Jan. 9, i912.

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'W'essesf Ww I 0. SAEGER.

MACHINE FOR CLEAN-ING MUFFLES 0R ZNC PURNACES. APPLICATION FILED 331212.12, 1911.

'Panam 3311.9,1913

s SEEBTSYSHBBT 3'.

Y I i am; Sge"- v-To all whom/itv conce/rmil par STATES PAiraN'rlo1%"1210111` g MACHINE For, cLEANING MUFFLES R ZINC-FURNACES.

Be itkn'own that'I, OTTO SAGER, general manager, a 'subject of the Emperor of Germany, residing at SchweidnitzeriStadtgralben 26, Breslau, Germany have invented certain new `and useful Improvements. in

' Machines for Cleaning'Muiles or Zinc-Furnace/s,- of which the following is a specification.

This invention relates to. apparatus for mechanically removing the residues' from the inutiles of zinc furnaces. this work was done by hand- In so doing,

Heretofore however, serious drawbacks were met with, such as the great heat of the furnace and the poisonous gases emanating from the residues, which seriously interfered with the work of emptying the muffles and greatly endangered the health of the workers. When the muftles are attended to solely by' hand the most powerful workers can hold out only for a shift of three hours. It is therefore desirable as far as possible to do .away withmanual labor in connection with the vmuil'les of Zinc furnaces.

A primary object of my invention is to provide a machine for cleaning the muiiies which obviates the previously mentioned drawbacks by rendering all manual operations superiiuous.

In the machine according to my invention vI use screw conveyers for withdrawing the residues from the mufies. These screw conveyers are journaled on a truck which can be moved both parallel to the front -of the furnace containing the mui'lies'and also inthe longitudinal direction of the muifles.

For this purpose a lower truck runs .parallel to the furnace front and an upper track runs in the direction of the mufies on the lower truck. As the muflies are inclined, the rails on which the upper truck travels onthe lower truck must have an inclination corremu'ie earlier than the others, whereby frac' tures in the machine might be caused. In order to avoid the same, I insert flexlble con- Speciication of Letters Patent. 4

Patented an. 9, 191.2..

i Application led September 12, 1911. Serial No. 648,900.

nections between the .conveyers and their driving shafts.

tionA anda modification thereof are represented by way of example in the accompanying drawings, wherein Figures 1 and 2 `are side elevation partly in section, and top plan View, respectively., showing a machine for cleaning muiiies, and

Fig?) is a side elevation, partly in' section, v showing acleaning machine which can alsobe used for charging. A

Referring rstly to Figs. land 2, on the frame 11 of the lower truckis mounted a motor, 2 driving Athe shaft 4 through the rnedium of worm wheel gearing 3. The motion of this shaft is imparted by bevel gears 4a, 5a

to the shaft '5 on which'is provided a double 'friction clutch 6. Theedges ofthe friction clutch are formed as spur gears 7 `and,7a. The said 'spur-gear 7a isl in mesh with the One illustrative embodiment of my invenpinion 10, which in turn mesheswith the spur-gear v8 which is mounted vupon the shaft 11. The opposite clutch-gear 7 .meshes directly with thel spur-gear 9, which is ralso mounted upon the shaft`11. lIt is obvious that through this arrangement, the shaft 11 may be rotated in alternate directions accordingly as the clutch-gears 7 a or K7 are engaged by the clutch. On the shaftll is a double claw clutch 12 which can drive either the shaft 14 through the mediumof the pinr' ion '13, or the shaft 21 through the medium of the gears 19 and 20'. On one end of this lshaft 14 is a bevel gear 14al meshingwith the bevel gear 15 fast on the shaft 16. The

latter shaft carries two rope drums 162-16b on which two ropes 17 are wound righthandedly and two ropes 18 left-handedly. The ropes 17 and 18 are attached to the gear Casing or lframe 18a of the upper truck, so

-that the upper truck can be run forward and backward on the track 38 vof thelower truck by the shaft 16.v The above-mentioned shaft 21 serves as a truck aXle and is pro'- vided with the-wheels 22 for the lower truck. lThe described part of the machine operates as follows Vhen the claw clutch 12 is thrown into engagement with the gear 13 by means of the reversing lever 23 and with i the aid of the lever 24 for actuating the friction clutch 6, the upper truck can loe-driven, the arrangement being such that when the lever 24 is tilted over toward the furnace,

the upper truck travels in the same direction, while when the lever 24 is tilted over to the rear e. away from the furnace, the Lipper truck ,likewise travels to` the rear.

When the clau'7 clutch 12en'gages with the l tion by' the pinion 27 and spur gear 28 to the lines at the bottom conveyer.

shaft 29 and to the middle screw conveyei 32,-.and the gears 30, 31 impartthe motion thereof to the outside screw conveyers 32. The gears 30, 3 1- are journaled in the gear casing33 4The shafts 31L carrying the gears ,31:are pivotally 'connected with the screw vconveyeis 32. v

' A guide 34 is provided on the gear casing 33 for thefseats or conveyer holder 35. In order'to be able exactly to adjust the conveyers vorl Scrapers 32 to the muliies, the holders '35 can be adjusted to the correct Iheight in the guide34. The rods or stems ofthe Scrapers are in two' parts connected by gas piping and a' spring 36, whereby I arrange that the lengths of the rods can be va- 4ried to ladapt them to inutiles of unequal -length- In order t0 be able also to employ the de- -scribed' machine for charging inutiles, -as shown in'Fig. 3 it must be'lnodied somewhat. The principle of the machine {remains the' saine, however. A charge hopper 39 has to be provided-on the machine. The, ore is fed from this hopper through a vertical distributing pipe 40 to the short pipes 11 from which the screw conveyers issue. Each ofl the conveyers is surrounded by a casing 42, as indicated in Fig. 3 in dotted v When in such a cleaning machine the direction of rotation oflthe conveyers is the reverse of that obtaining when cleaning the inutiles, the conveyers feed the ore falling 'out of the hopper .into the mutlies. The conveyers, however, are not driven along the bottom of the mutiles as when cleaning the same, but under the top thereof as is indicated in dotted lines in the lower part of Fig. 3.' In order uniformly -to distribute the 'ore in the muftles it islonly necessary to introduce into the inutiles at a constant speed the conveyers rotatingat alconstant speed, and when they have entirely entered therein to withdraw them at the same speed.

I claim c 1. In a machinefor cleaning inclined muftles-of zinc furnaces, the'combination with a lower truck for running parallel to the front of a furnace and having an inclined track at right 'angles thereto, of an upper truck movable on. the said track, one or moie screw conveyers carried by the `upper truck, and means on the upper truck for driving the one or more conveyers, the inclination of said track corresponding to the inclination of the inutiles. l. v

2. In a machine for cleaning the.muifles of i zinc furnaces, the combination with a'v lower truck for running along the front of c a furnace, `of. an upper truck movable 'on theretolvone or more screw conveyers carried by the upper truck,.and means on the .the lower truck in a direction at `rightnangles upper truck for driving the one or more conveyers, each conveyer including an elastically connected two-part rod or stem. 3. In a zinc inutile cleaning machine, the combination with a pair of trucks mounted one uponthe other, of a inutile cleaning apparatus consisting of one' or more extensible conveyers resiliently' lmounted upon one of the said trucks, said conveyers adapted to be'moved into said muiiies and'to be`rotated therein, and means on the other 'ofv said trucks for causing said rotation. i

4. 'In a machine for cleaning the muftles of zinc furnaces, the combination with a primary truck adapted to move along the front of a furnace,l andhaving aninclined track at right angles thereto, of'a secondary truck movable on said track, one or more extensible screw conveyers resilieritly mounted upon said truck, and adapted to extend into inclined inutiles thereby to remove the contents thereof, the inclination of said track Vcorresponding to the inclination ofthe inufles.

my name this 31st day of August 1911, in the presence of two subscribing witnesses.

Witnesses HENRY HASPER, VVOLDEMAR HAUPT.

. i In witness whereofl I havehereunto signed oTTo simens... 

